dcrat | c401439e32ff3789bc0f18182d58a13b661396fff40a86c3ffc290c151349356

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
23/07/2024, 14:58

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General

Target
gradlew.exe
Size 3.1MB
Sample240723-schcsawcjk
SHA256 c401439e32ff3789bc0f18182d58a13b661396fff40a86c3ffc290c151349356
MD5 10484b2845bc5be1e77a4ca03b81996f
SHA1 101a51ec35335cc2eaaa6315309924d5765ce6a5
SHA512 35974b655d22f4b498f5b306d741ae97be1bb7a3973eee83961b705d5f027b6e2587f37e41ca3d6f4ebb2560553a848f3ace53899c429a81235d29bfab630957
SSDEEP 98304:ub0FSgj8YFrn8RBXsGKZPEy8+4iQEk70j:uenj8YFrn8MPdj5SEkAj
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

dcrat credential_access discovery evasion infostealer persistence rat spyware stealer trojan

Malware Config

Signatures

DcRat 25 IoCs

DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

rat infostealer dcrat

description	ioc	pid	Process
		412	schtasks.exe
		612	schtasks.exe
		4304	schtasks.exe
		1940	schtasks.exe
		3260	schtasks.exe
		3708	schtasks.exe
		1928	schtasks.exe
		4220	schtasks.exe
		2608	schtasks.exe
		1964	schtasks.exe
		2752	schtasks.exe
		1616	schtasks.exe
		3676	schtasks.exe
		4408	schtasks.exe
		4428	schtasks.exe
		2836	schtasks.exe
		1552	schtasks.exe
		1088	schtasks.exe
		3652	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language		gradlew.exe
		3888	schtasks.exe
		2252	schtasks.exe
		5068	schtasks.exe
		1976	schtasks.exe
		3588	schtasks.exe

Modifies WinLogon for persistence 2 TTPs 8 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\All Users\\Adobe\\Setup\\TrustedInstaller.exe\", \"C:\\reviewsessionDhcp\\lsass.exe\""	Comfont.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\All Users\\Adobe\\Setup\\TrustedInstaller.exe\", \"C:\\reviewsessionDhcp\\lsass.exe\", \"C:\\Program Files (x86)\\Windows Defender\\uk-UA\\explorer.exe\""	Comfont.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\All Users\\Adobe\\Setup\\TrustedInstaller.exe\", \"C:\\reviewsessionDhcp\\lsass.exe\", \"C:\\Program Files (x86)\\Windows Defender\\uk-UA\\explorer.exe\", \"C:\\Users\\Admin\\sppsvc.exe\""	Comfont.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\All Users\\Adobe\\Setup\\TrustedInstaller.exe\", \"C:\\reviewsessionDhcp\\lsass.exe\", \"C:\\Program Files (x86)\\Windows Defender\\uk-UA\\explorer.exe\", \"C:\\Users\\Admin\\sppsvc.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\csrss.exe\""	Comfont.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\All Users\\Adobe\\Setup\\TrustedInstaller.exe\", \"C:\\reviewsessionDhcp\\lsass.exe\", \"C:\\Program Files (x86)\\Windows Defender\\uk-UA\\explorer.exe\", \"C:\\Users\\Admin\\sppsvc.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\SppExtComObj.exe\""	Comfont.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\All Users\\Adobe\\Setup\\TrustedInstaller.exe\", \"C:\\reviewsessionDhcp\\lsass.exe\", \"C:\\Program Files (x86)\\Windows Defender\\uk-UA\\explorer.exe\", \"C:\\Users\\Admin\\sppsvc.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\SppExtComObj.exe\", \"C:\\Users\\Default\\Desktop\\dwm.exe\""	Comfont.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\All Users\\Adobe\\Setup\\TrustedInstaller.exe\", \"C:\\reviewsessionDhcp\\lsass.exe\", \"C:\\Program Files (x86)\\Windows Defender\\uk-UA\\explorer.exe\", \"C:\\Users\\Admin\\sppsvc.exe\", \"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\SppExtComObj.exe\", \"C:\\Users\\Default\\Desktop\\dwm.exe\", \"C:\\Recovery\\WindowsRE\\conhost.exe\""	Comfont.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\All Users\\Adobe\\Setup\\TrustedInstaller.exe\""	Comfont.exe

Process spawned unexpected child process 24 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	412	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4428	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1964	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3708	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4220	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1616	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3676	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1088	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2608	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4408	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5068	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2252	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3652	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1928	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4304	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2836	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3888	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	612	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3260	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1976	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1940	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1552	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3588	1236	schtasks.exe	91
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2752	1236	schtasks.exe	91

UAC bypass 3 TTPs 6 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	TrustedInstaller.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	TrustedInstaller.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	TrustedInstaller.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Comfont.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	Comfont.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	Comfont.exe

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

DCRat payload 2 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral2/files/0x0007000000023447-10.dat	dcrat
behavioral2/memory/2408-13-0x0000000000AA0000-0x0000000000D6C000-memory.dmp	dcrat

Disables Task Manager via registry modification
evasion

Checks computer location settings 2 TTPs 4 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation	gradlew.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation	Comfont.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation	TrustedInstaller.exe

Executes dropped EXE 2 IoCs

pid	Process
2408	Comfont.exe
1172	TrustedInstaller.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 16 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SppExtComObj = "\"C:\\Recovery\\WindowsRE\\SppExtComObj.exe\""	Comfont.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dwm = "\"C:\\Users\\Default\\Desktop\\dwm.exe\""	Comfont.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TrustedInstaller = "\"C:\\Users\\All Users\\Adobe\\Setup\\TrustedInstaller.exe\""	Comfont.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Program Files (x86)\\Windows Defender\\uk-UA\\explorer.exe\""	Comfont.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\csrss.exe\""	Comfont.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\VideoLAN\\VLC\\hrtfs\\csrss.exe\""	Comfont.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\conhost = "\"C:\\Recovery\\WindowsRE\\conhost.exe\""	Comfont.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\reviewsessionDhcp\\lsass.exe\""	Comfont.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Program Files (x86)\\Windows Defender\\uk-UA\\explorer.exe\""	Comfont.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SppExtComObj = "\"C:\\Recovery\\WindowsRE\\SppExtComObj.exe\""	Comfont.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\conhost = "\"C:\\Recovery\\WindowsRE\\conhost.exe\""	Comfont.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TrustedInstaller = "\"C:\\Users\\All Users\\Adobe\\Setup\\TrustedInstaller.exe\""	Comfont.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\reviewsessionDhcp\\lsass.exe\""	Comfont.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sppsvc = "\"C:\\Users\\Admin\\sppsvc.exe\""	Comfont.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sppsvc = "\"C:\\Users\\Admin\\sppsvc.exe\""	Comfont.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dwm = "\"C:\\Users\\Default\\Desktop\\dwm.exe\""	Comfont.exe

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	TrustedInstaller.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	TrustedInstaller.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Comfont.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Comfont.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Windows Defender\uk-UA\explorer.exe	Comfont.exe
File created	C:\Program Files (x86)\Windows Defender\uk-UA\7a0fd90576e088	Comfont.exe
File created	C:\Program Files\VideoLAN\VLC\hrtfs\csrss.exe	Comfont.exe
File created	C:\Program Files\VideoLAN\VLC\hrtfs\886983d96e3d3e	Comfont.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gradlew.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000_Classes\Local Settings	gradlew.exe
Key created	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000_Classes\Local Settings	Comfont.exe
Key created	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000_Classes\Local Settings	TrustedInstaller.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2268	reg.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 24 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1616	schtasks.exe
5068	schtasks.exe
2252	schtasks.exe
3888	schtasks.exe
3260	schtasks.exe
3588	schtasks.exe
412	schtasks.exe
4220	schtasks.exe
1976	schtasks.exe
2752	schtasks.exe
1964	schtasks.exe
3676	schtasks.exe
1940	schtasks.exe
1552	schtasks.exe
4304	schtasks.exe
2836	schtasks.exe
1088	schtasks.exe
2608	schtasks.exe
4408	schtasks.exe
3652	schtasks.exe
1928	schtasks.exe
612	schtasks.exe
4428	schtasks.exe
3708	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2408	Comfont.exe
2408	Comfont.exe
2408	Comfont.exe
2408	Comfont.exe
2408	Comfont.exe
2408	Comfont.exe
2408	Comfont.exe
2408	Comfont.exe
2408	Comfont.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe
1172	TrustedInstaller.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1172	TrustedInstaller.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2408	Comfont.exe
Token: SeDebugPrivilege	1172	TrustedInstaller.exe
Token: SeBackupPrivilege	3680	vssvc.exe
Token: SeRestorePrivilege	3680	vssvc.exe
Token: SeAuditPrivilege	3680	vssvc.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 756	2424	gradlew.exe	86
PID 2424 wrote to memory of 756	2424	gradlew.exe	86
PID 2424 wrote to memory of 756	2424	gradlew.exe	86
PID 756 wrote to memory of 2768	756	WScript.exe	93
PID 756 wrote to memory of 2768	756	WScript.exe	93
PID 756 wrote to memory of 2768	756	WScript.exe	93
PID 2768 wrote to memory of 2408	2768	cmd.exe	95
PID 2768 wrote to memory of 2408	2768	cmd.exe	95
PID 2408 wrote to memory of 5056	2408	Comfont.exe	122
PID 2408 wrote to memory of 5056	2408	Comfont.exe	122
PID 2768 wrote to memory of 2268	2768	cmd.exe	124
PID 2768 wrote to memory of 2268	2768	cmd.exe	124
PID 2768 wrote to memory of 2268	2768	cmd.exe	124
PID 5056 wrote to memory of 2528	5056	cmd.exe	125
PID 5056 wrote to memory of 2528	5056	cmd.exe	125
PID 5056 wrote to memory of 1172	5056	cmd.exe	126
PID 5056 wrote to memory of 1172	5056	cmd.exe	126
PID 1172 wrote to memory of 2612	1172	TrustedInstaller.exe	127
PID 1172 wrote to memory of 2612	1172	TrustedInstaller.exe	127
PID 1172 wrote to memory of 4732	1172	TrustedInstaller.exe	128
PID 1172 wrote to memory of 4732	1172	TrustedInstaller.exe	128

System policy modification 1 TTPs 6 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	Comfont.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	Comfont.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	TrustedInstaller.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	TrustedInstaller.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	TrustedInstaller.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Comfont.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\gradlew.exe
"C:\Users\Admin\AppData\Local\Temp\gradlew.exe"
1⤵
- DcRat
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2424
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\reviewsessionDhcp\0xRPN8KD8QUblsv.vbe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:756
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\reviewsessionDhcp\p9Za2QKx82X3RV5n3OcR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2768
  - - C:\reviewsessionDhcp\Comfont.exe
      "C:\reviewsessionDhcp\Comfont.exe"
      4⤵
      Modifies WinLogon for persistence
      UAC bypass
      Checks computer location settings
      Executes dropped EXE
      Adds Run key to start application
      Checks whether UAC is enabled
      Drops file in Program Files directory
      Modifies registry class
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      System policy modification
      PID:2408
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\dxo6FVG0Pk.bat"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:5056
      - C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        6⤵
        
        PID:2528
      - C:\Users\All Users\Adobe\Setup\TrustedInstaller.exe
        
        "C:\Users\All Users\Adobe\Setup\TrustedInstaller.exe"
        6⤵
        UAC bypass
        Checks computer location settings
        Executes dropped EXE
        Checks whether UAC is enabled
        Modifies registry class
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        System policy modification
        
        PID:1172
        
        C:\Windows\System32\WScript.exe
        
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\765ad8eb-87b7-4b2d-a059-649a264996db.vbs"
        7⤵
        
        PID:2612
        
        C:\Windows\System32\WScript.exe
        
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\a9aab320-6ee4-4c90-ae09-0e021367ca2c.vbs"
        7⤵
        
        PID:4732
  - - C:\Windows\SysWOW64\reg.exe
      reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
      4⤵
      System Location Discovery: System Language Discovery
      Modifies registry key
      PID:2268

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "TrustedInstallerT" /sc MINUTE /mo 6 /tr "'C:\Users\All Users\Adobe\Setup\TrustedInstaller.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:412

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "TrustedInstaller" /sc ONLOGON /tr "'C:\Users\All Users\Adobe\Setup\TrustedInstaller.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4428

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "TrustedInstallerT" /sc MINUTE /mo 10 /tr "'C:\Users\All Users\Adobe\Setup\TrustedInstaller.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1964

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 12 /tr "'C:\reviewsessionDhcp\lsass.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3708

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\reviewsessionDhcp\lsass.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4220

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 10 /tr "'C:\reviewsessionDhcp\lsass.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1616

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Defender\uk-UA\explorer.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3676

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Defender\uk-UA\explorer.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1088

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Windows Defender\uk-UA\explorer.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2608

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 13 /tr "'C:\Users\Admin\sppsvc.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4408

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Users\Admin\sppsvc.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5068

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 11 /tr "'C:\Users\Admin\sppsvc.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2252

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 10 /tr "'C:\Program Files\VideoLAN\VLC\hrtfs\csrss.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3652

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\VideoLAN\VLC\hrtfs\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1928

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Program Files\VideoLAN\VLC\hrtfs\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4304

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2836

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3888

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 7 /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:612

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 8 /tr "'C:\Users\Default\Desktop\dwm.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3260

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Users\Default\Desktop\dwm.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1976

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 12 /tr "'C:\Users\Default\Desktop\dwm.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1940

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\conhost.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1552

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\conhost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2752

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\conhost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3588

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3680

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:4448

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

765ad8eb-87b7-4b2d-a059-649a264996db.vbs

Path C:\Users\Admin\AppData\Local\Temp\765ad8eb-87b7-4b2d-a059-649a264996db.vbs
Size 727B
SHA256 848bd5499a3b4a1c8d056d59c6f295a083fb51bd0b0241d735c4dfcd4aa0b98e
MD5 2d21b4927c52c00db752ac9641819eb0
SHA1 57cc59b34eedf48706e31df59b26b787ce152bc4
SHA512 cce6f98fc0095d26d274ee2c121a7f199eb472daa2e68f17a1dcbb9768149aab45b095e0663f9add812c82b83dc6032956af5afeb1792119e36376c09f7760c7
MD5 SHA1 SHA512

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a9aab320-6ee4-4c90-ae09-0e021367ca2c.vbs

Path C:\Users\Admin\AppData\Local\Temp\a9aab320-6ee4-4c90-ae09-0e021367ca2c.vbs
Size 503B
SHA256 faeef5ca31bc9eafda59d07f9486724743410afef8c55223bf2af149b383f890
MD5 4c61efdf48acd9b3bf9ca457bc1fd3d7
SHA1 bc87fa6673bd3017be19038ad3cd3895f4a8487d
SHA512 022533f4c1075fcb159d90121029fa4decbaccd14f09d164e18016db6b6d96fae774580770b688cc6625f5fad0fa6a1586d3fab69f08344702449c00d696070d
MD5 SHA1 SHA512

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dxo6FVG0Pk.bat

Path C:\Users\Admin\AppData\Local\Temp\dxo6FVG0Pk.bat
Size 216B
SHA256 441cfeac3b6e891b12880377bd74df2edc9dd28b8c9aad628b2bb37e80932098
MD5 7ee7d1870cb8fb2bb71ca637b2b68bf6
SHA1 26499cd13b925dc8772f42770851e1fadba4ec95
SHA512 188885481eb365864b0790534b4d39dbd585c9c55f344cd1faf333ce2e02d5f5ddad87f522ab5a3efdda0a618f988de627aac397b4ad8355327c44e36346641e
MD5 SHA1 SHA512

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0xRPN8KD8QUblsv.vbe

Path C:\reviewsessionDhcp\0xRPN8KD8QUblsv.vbe
Size 214B
SHA256 2e30042ec881966603e615db4fa83118b39b452bfe45ad48bad18353f1c81dd8
MD5 6a24152fcded23d8f5dd4078549c31a3
SHA1 2a973c865f3bd6cb1f7fe31b6d369f69d6cd6de9
SHA512 740636b968d0a3f6ffd5eb4c9c1a6d20e7ae41da2e50c00512a28e494e236d9bbc743de945f412858c861d56b2c14ec61843400771b3885944a6581adcfdb4fe
MD5 SHA1 SHA512

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Comfont.exe

Path C:\reviewsessionDhcp\Comfont.exe
Size 2.8MB
SHA256 0a53faccce89f3a69791697da862b11568debd478981b14fe526ca12822202bc
MD5 3a33ee7349a6fb39bef079bf65505123
SHA1 42a9553896cdbfcc6ca639a9ae076a5632cdbc31
SHA512 b10c9ae2ab03def390440bb441514cd56a3f85fa4b58c4e2e9257579cb1d02e12ecc9d15c9ef791b4f27f8b3a9bec1b57f88d5bca2854b45ab93f9c03a42e1bb
SSDEEP 49152:W+Fvq5MfG54bL8Mq8cSrn8V/n9rXdyGKWyuY7y6ZSy8+4iTsERuJHDKXy2H:1FSgj8YFrn8RBXsGKZPEy8+4iQEk70
MD5 SHA1 SHA512 SSDEEP

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p9Za2QKx82X3RV5n3OcR.bat

Path C:\reviewsessionDhcp\p9Za2QKx82X3RV5n3OcR.bat
Size 146B
SHA256 1a2e8412a55161f7a9270e621ebebad0172a2ff026cdf5b2f305fa6eaa7b7eda
MD5 af5ce85a32783d13bd98affd9f3a37f9
SHA1 88aa07b0271db6d3caea5cc1b31995491906642d
SHA512 be5616edde5da2a73cd0e226128421c58a5f46b694c2d69dbeeec98c7bac3c1c5094f7852324a1437b4f43c69a89a6ffadd224088651911d4aa1b26281922b86
MD5 SHA1 SHA512

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memory/1172-60-0x0000000002B60000-0x0000000002B72000-memory.dmp

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memory/2408-23-0x0000000003010000-0x0000000003022000-memory.dmp

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memory/2408-27-0x000000001BB00000-0x000000001BB0C000-memory.dmp

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memory/2408-18-0x0000000002EB0000-0x0000000002EC6000-memory.dmp

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memory/2408-20-0x0000000003020000-0x0000000003030000-memory.dmp

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memory/2408-17-0x0000000002EA0000-0x0000000002EA8000-memory.dmp

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memory/2408-21-0x0000000003000000-0x000000000300A000-memory.dmp

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memory/2408-22-0x000000001BA90000-0x000000001BAE6000-memory.dmp

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memory/2408-16-0x0000000003040000-0x0000000003090000-memory.dmp

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memory/2408-24-0x000000001C670000-0x000000001CB98000-memory.dmp

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memory/2408-25-0x0000000003030000-0x000000000303C000-memory.dmp

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memory/2408-26-0x0000000003090000-0x000000000309C000-memory.dmp

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memory/2408-19-0x0000000002FF0000-0x0000000002FF8000-memory.dmp

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memory/2408-28-0x000000001C390000-0x000000001C398000-memory.dmp

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memory/2408-29-0x000000001BB10000-0x000000001BB1A000-memory.dmp

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memory/2408-33-0x000000001C360000-0x000000001C36A000-memory.dmp

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memory/2408-34-0x000000001C370000-0x000000001C37C000-memory.dmp

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memory/2408-32-0x000000001C350000-0x000000001C358000-memory.dmp

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memory/2408-31-0x000000001C240000-0x000000001C248000-memory.dmp

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memory/2408-30-0x000000001BB20000-0x000000001BB2E000-memory.dmp

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memory/2408-15-0x0000000002E80000-0x0000000002E9C000-memory.dmp

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memory/2408-14-0x0000000002E70000-0x0000000002E7E000-memory.dmp

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memory/2408-13-0x0000000000AA0000-0x0000000000D6C000-memory.dmp

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memory/2408-12-0x00007FFAA3703000-0x00007FFAA3705000-memory.dmp

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